[INFO] crate varlink-cli 4.5.0 is already in cache
[INFO] checking varlink-cli-4.5.0 against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] extracting crate varlink-cli 4.5.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate varlink-cli 4.5.0 on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate varlink-cli 4.5.0
[INFO] finished tweaking crates.io crate varlink-cli 4.5.0
[INFO] tweaked toml for crates.io crate varlink-cli 4.5.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate varlink-cli 4.5.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e27ec4a28423d928faf87ddc4d4ae5e0ae455f718dacc5570219056a1c95a240
[INFO] running `"docker" "start" "-a" "e27ec4a28423d928faf87ddc4d4ae5e0ae455f718dacc5570219056a1c95a240"`
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling chainerror v0.4.3
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling escargot v0.5.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]     Checking varlink_parser v4.0.3
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr] error[E0277]: cannot add-assign `&ansi_term::display::ANSIGenericString<'_, str>` to `std::string::String`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/varlink_parser-4.0.3/src/format.rs:558:15
[INFO] [stderr]     |
[INFO] [stderr] 558 |             f += &Colour::Blue.paint(self.doc);
[INFO] [stderr]     |               ^^ no implementation for `std::string::String += &ansi_term::display::ANSIGenericString<'_, str>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::AddAssign<&ansi_term::display::ANSIGenericString<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: cannot add-assign `&ansi_term::display::ANSIGenericString<'_, str>` to `std::string::String`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/varlink_parser-4.0.3/src/format.rs:566:19
[INFO] [stderr]     |
[INFO] [stderr] 566 |                 f += &Colour::Blue.paint(t.doc);
[INFO] [stderr]     |                   ^^ no implementation for `std::string::String += &ansi_term::display::ANSIGenericString<'_, str>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::AddAssign<&ansi_term::display::ANSIGenericString<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: cannot add-assign `&ansi_term::display::ANSIGenericString<'_, str>` to `std::string::String`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/varlink_parser-4.0.3/src/format.rs:581:19
[INFO] [stderr]     |
[INFO] [stderr] 581 |                 f += &Colour::Blue.paint(m.doc);
[INFO] [stderr]     |                   ^^ no implementation for `std::string::String += &ansi_term::display::ANSIGenericString<'_, str>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::AddAssign<&ansi_term::display::ANSIGenericString<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: cannot add-assign `&ansi_term::display::ANSIGenericString<'_, str>` to `std::string::String`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/varlink_parser-4.0.3/src/format.rs:597:19
[INFO] [stderr]     |
[INFO] [stderr] 597 |                 f += &Colour::Blue.paint(t.doc);
[INFO] [stderr]     |                   ^^ no implementation for `std::string::String += &ansi_term::display::ANSIGenericString<'_, str>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::AddAssign<&ansi_term::display::ANSIGenericString<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `varlink_parser`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0277]: cannot add-assign `&ansi_term::display::ANSIGenericString<'_, str>` to `std::string::String`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/varlink_parser-4.0.3/src/format.rs:558:15
[INFO] [stderr]     |
[INFO] [stderr] 558 |             f += &Colour::Blue.paint(self.doc);
[INFO] [stderr]     |               ^^ no implementation for `std::string::String += &ansi_term::display::ANSIGenericString<'_, str>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::AddAssign<&ansi_term::display::ANSIGenericString<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: cannot add-assign `&ansi_term::display::ANSIGenericString<'_, str>` to `std::string::String`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/varlink_parser-4.0.3/src/format.rs:566:19
[INFO] [stderr]     |
[INFO] [stderr] 566 |                 f += &Colour::Blue.paint(t.doc);
[INFO] [stderr]     |                   ^^ no implementation for `std::string::String += &ansi_term::display::ANSIGenericString<'_, str>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::AddAssign<&ansi_term::display::ANSIGenericString<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: cannot add-assign `&ansi_term::display::ANSIGenericString<'_, str>` to `std::string::String`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/varlink_parser-4.0.3/src/format.rs:581:19
[INFO] [stderr]     |
[INFO] [stderr] 581 |                 f += &Colour::Blue.paint(m.doc);
[INFO] [stderr]     |                   ^^ no implementation for `std::string::String += &ansi_term::display::ANSIGenericString<'_, str>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::AddAssign<&ansi_term::display::ANSIGenericString<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: cannot add-assign `&ansi_term::display::ANSIGenericString<'_, str>` to `std::string::String`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/varlink_parser-4.0.3/src/format.rs:597:19
[INFO] [stderr]     |
[INFO] [stderr] 597 |                 f += &Colour::Blue.paint(t.doc);
[INFO] [stderr]     |                   ^^ no implementation for `std::string::String += &ansi_term::display::ANSIGenericString<'_, str>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::AddAssign<&ansi_term::display::ANSIGenericString<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `varlink_parser`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e27ec4a28423d928faf87ddc4d4ae5e0ae455f718dacc5570219056a1c95a240"`
[INFO] running `"docker" "rm" "-f" "e27ec4a28423d928faf87ddc4d4ae5e0ae455f718dacc5570219056a1c95a240"`
[INFO] [stdout] e27ec4a28423d928faf87ddc4d4ae5e0ae455f718dacc5570219056a1c95a240